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There, Bretagne was given treats and a birthday cake to help her celebrate her 16th birthday, before the pair made their way back to Ground zero.

Corliss explained how she and Bretagne were sent on their first-ever search from the Texas Task Force to relieve the first responders at the World Trade Center.

The mission was Bretagne's first deployment, but Corliss said she took to it perfectly, despite working 12 hours days in some of the most difficult conditions imaginable.

For the birthday girl: During her 16th birthday celebration last year Bretagne and Corliss were treated to a hero's welcome at LaGuardia Airport in New York before having cake

Tasty: They also got to stay in the luxurious 1 Hotel Central Park courtesy of BarkPost and tour Ground Zero, where they had helped in the search efforts so many years earlier

A very sad day for the men & women with the Cy Fair FD. Today they said good bye to Bretagne (pronounced "Brittany") she's the last known surviving 9/11 search and rescue dog. She would have turned 17 in Aug. This video shows her walking into the vet's office one last time - getting a hero's salute. She was put down at 5pm. STORY-->http://bit.ly/1XB5dhM